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Heart|Lab Grown|IGI

3.51ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG644444604

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG644444604

Diamond specifications and retailer prices

From $625 USD
As of October 27, 2026
Save $4,925 USD (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,550 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.51ct lab-grown heart diamond

This 3.51ct lab-grown heart sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG644444604 or 644444604. Listed at 23 retailers as of October 27, 2026, with prices from $625 to $5,550, a $4,925 spread on the same certified stone. Do Amore Diamonds lists it at $5,550. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.51
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644444604
Dimensions8.96 × 10.53 × 6.41 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.96 mm10.53 mm3.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644444604
Side View
Table 59.0%Crown 37.2°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $5,550 USD|Low: $600 USD|High: $6,350 USD|Avg: $1,796 USD|-12.6%
Do Amore Diamonds
Retailer 2
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Retailer 17
November 1, 2026
Retailer 5$600 USD
Retailer 17$700 USD
Retailer 4$775 USD
Retailer 16$775 USD
Retailer 15$895 USD
Retailer 10$977 USD
Retailer 7$998 USD
Retailer 12$1,016 USD
Retailer 6$1,026 USD
Retailer 9$1,262 USD
Retailer 11$1,808 USD
Retailer 13$1,842 USD
Retailer 14$1,853 USD
Retailer 3$2,532 USD
Retailer 8$2,872 USD
Retailer 2$3,145 USD
Do Amore Diamonds$5,550 USD

28 data points across 17 retailers

23 retailers$625 USD to $5,550 USD

Retailer 1
-
$600 USD
Price last confirmed 31 days ago
A
Retailer 2
-
$625 USD
View
Retailer 3
-
$680 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$700 USD
View
Final sale: no returns
Retailer 5
-
$775 USD
View
Price last confirmed 30 days ago
Retailer 6
-
$775 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$775 USD
View
Retailer 8
-
$775 USD
View
Price last confirmed 17 days ago
A
Retailer 9
-
$895 USD
View
A
Retailer 10
-
$977 USD
£769 GBP
View
A
Retailer 11
-
$998 USD
View
A
Retailer 12
-
$1,016 USD
View
B+
Retailer 13
-
$1,026 USD
View
A
Retailer 14
-
$1,126 USD
View
B+
Retailer 15
-
$1,808 USD
A$2,782 AUD
View
Retailer 16
-
$1,842 USD
ZAR 29,754 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 17
-
$1,853 USD
View
Retailer 18
-
$2,251 USD
View
Price last confirmed 7 days ago
Retailer 19
-
$2,251 USD
View
Price last confirmed 32 days ago
B
Retailer 20
-
$2,532 USD
View
B
Retailer 21
-
$2,872 USD
View
B
Retailer 22
-
$3,145 USD
£2,476 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DEF17AF96 · Nov 2
$5,550 USD
View
22 more retailers have this diamond
Prices start from $625 USDSave up to $4,925 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.51ct Heart
$625 USD